Question 1

The pressure in the oil (S = 0.86) pipe is 12 kPa. The pressure

Accepted Answer

A)  −34.8 kPa in the water pipe is nearest:
  
B)  −28.8 kPa 
C)  −18.8 kPa 
D)  −13.1 kPa 
A)  −34.8 kPa in the water pipe is nearest:
  
B)  −28.8 kPa 
C)  −18.8 kPa 
D)  −13.1 kPa D

Question 2

A horizontal 80-cm-diameter hatch is located on the top of a submersible designed for a diver to escape. If the submersible is 100 m below the surface of the ocean, estimate the minimum
Force required to open the hatch? $$\text { Assume } S _ { \text {saltwater } } = 1.02 \text {. }$$

Accepted Answer

A)  300 kN 
B)  400 kN 
C)  500 kN 
D)  600 kN 
A)  300 kN 
B)  400 kN 
C)  500 kN 
D)  600 kN C

Question 3

A gate automatically opens when the water gets too high.

Accepted Answer

A)  0.6 m 
B)  1.2 m 
C)  1.8 m 
D)  2.4 m 
A)  0.6 m 
B)  1.2 m 
C)  1.8 m 
D)  2.4 m B

Question 4

A 1.2-m high by 2.8-m wide, vertical rectangular gate is used to control the flow of water from a reservoir to a grinding mill. A frictionless hinge runs along the bottom of the gate. The
Minimum force acting normal to and at the very top of the gate needed to hold the gate shut if
The water is at the very top of the gate, is nearest:

Accepted Answer

A)  6590 N 
B)  9800 N 
C)  10 000 N 
D)  13 300 N How high above the hinge must the water be for the gate
To just open? 
A)  6590 N 
B)  9800 N 
C)  10 000 N 
D)  13 300 N How high above the hinge must the water be for the gate
To just open?

Question 5

An object requires a force of 30 N to hold it under water. The object weighs 90 N in air. Its density is nearest:

Accepted Answer

A)  $850 \mathrm {~kg} / \mathrm { m } ^ { 3 }$ 
B)  $800 \mathrm {~kg} / \mathrm { m } ^ { 3 }$ 
C)  $750 \mathrm {~kg} / \mathrm { m } ^ { 3 }$ 
D)  $700 \mathrm {~kg} / \mathrm { m } ^ { 3 }$ 
A)  $850 \mathrm {~kg} / \mathrm { m } ^ { 3 }$ 
B)  $800 \mathrm {~kg} / \mathrm { m } ^ { 3 }$ 
C)  $750 \mathrm {~kg} / \mathrm { m } ^ { 3 }$ 
D)  $700 \mathrm {~kg} / \mathrm { m } ^ { 3 }$

Question 6

The force P needed to hold the 2-m-radius circular arc gate in the position shown is nearest:

Accepted Answer

A)  58 kN 
B)  49 kN 
C)  39 kN 
D)  27 kN 
A)  58 kN 
B)  49 kN 
C)  39 kN 
D)  27 kN

The pressure in the oil (S = 0.86) pipe is 12 kPa. The pressure

A horizontal 80-cm-diameter hatch is located on the top of a submersible designed for a diver to escape. If the submersible is 100 m below the surface of the ocean, estimate the minimum Force required to open the hatch? $\text { Assume } S _ { \text {saltwater } } = 1.02 \text {. }$

A gate automatically opens when the water gets too high.

An object requires a force of 30 N to hold it under water. The object weighs 90 N in air. Its density is nearest:

The force P needed to hold the 2-m-radius circular arc gate in the position shown is nearest:

Basic Considerations

Fluid Statics

Introduction to Fluids in Motion

The Differential Forms of the Fundamental Laws

Dimensional Analysis and Similitude

Internal Flows

External Flows

Compressible Flow

Flow in Open Channels

Flows in Piping Systems

Turbomachinery

Measurements in Fluid Mechanics

Computational Fluid Dynamics

Fluid Dynamics and Aerodynamics

Filters

Exam 4: The Integral Forms of the Fundamental Laws

The pressure in the oil (S = 0.86) pipe is 12 kPa. The pressure

A gate automatically opens when the water gets too high.

An object requires a force of 30 N to hold it under water. The object weighs 90 N in air. Its density is nearest:

The force P needed to hold the 2-m-radius circular arc gate in the position shown is nearest:

Basic Considerations

Fluid Statics

Introduction to Fluids in Motion

The Differential Forms of the Fundamental Laws

Dimensional Analysis and Similitude

Internal Flows

External Flows

Compressible Flow

Flow in Open Channels

Flows in Piping Systems

Turbomachinery

Measurements in Fluid Mechanics

Computational Fluid Dynamics

Fluid Dynamics and Aerodynamics

Filters